Hey guys just wondering with the 2L turbo ppl, what PSI r u running on ur stock engine ??? and if u have mods done, what r thay at what PSI ? thanks guys
Completely stock I was at 17 lbs, maybe a smidge more on a good day.
My new engine (stage 1) had 26 lbs of boost but had too much spark advance so a few head gaskets and rod bearings gave their lives in the pursuit of horsepower. Stage 2 is at 21 lbs right now with the timing pulled way back and no death toll (so far). Both stages have/had ARP rod bolts, 1/2" head studs and stock pistons, crank, rods, etc.
Tony
Tony
1987 Sunbird GT turbo convert
Ported intake, Fiero 53 MM TB, 52 lb inj, ported and flowed head, tube header, Mitsu TD06, ARP rod
bolts/head studs, adj cam sprocket, 4" x 12" x 31" FMIC, Paxton AFPR, modified 125 trans/LSD
unit/3.42's, custom chip tuning, Alky Control Methanol injection
13.61 ET at 101.44 mph, 262 WHP/350WTQ
2009 Pontiac Solstice GXP roadster, 2.0 turbo w/GMPP exh, CAI and turbo upgrade, 290 hp/325 ft lbs
1969 Olds 442 convert
400 Eng, 200-4R trans, 3.73 posi, power everything, OAI
I'm at 17 psi with stock engine. Car is intercooled with Mitsu BOV, ceramic coated intake, and larger TB. Tuning is all mine with 3 bar MAP sensor and many, many hours of work.
If I get to a "stage 1" engine I'll have to hide it from the villagers. Villagers and Frankenstien don't get along..
-->Slow
slowelj, can u send me that bin file some time soon
?? i have a guy locally to burn-reburn chips for me
1st 1st gen on air.....
wow nice how did u guys get it to 17 on stock fuel ??
By ''stock fuel'' you mean pump gas right? In my case I never heard or saw signs of detonation though knowing what I know now it had to have been there. If I'd done a better job of trying to monitor detonation I probably would have seen some.
So there was some dumb luck there for me. Use the largest intercooler you can afford and will fit and if you have the ability to modify your computer pull some timing out over 10 lbs of boost or so. Datalogging is a great idea too if you have a means to do it. Once you get into the secret fraternity of online computer geeks these things become available to you. Ha ha ha.
MSD makes a knock detector that's simple to hook up and could save you some repair bills. I got mine from Summit for around $140 bucks.
Tony
Tony
1987 Sunbird GT turbo convert
Ported intake, Fiero 53 MM TB, 52 lb inj, ported and flowed head, tube header, Mitsu TD06, ARP rod
bolts/head studs, adj cam sprocket, 4" x 12" x 31" FMIC, Paxton AFPR, modified 125 trans/LSD
unit/3.42's, custom chip tuning, Alky Control Methanol injection
13.61 ET at 101.44 mph, 262 WHP/350WTQ
2009 Pontiac Solstice GXP roadster, 2.0 turbo w/GMPP exh, CAI and turbo upgrade, 290 hp/325 ft lbs
1969 Olds 442 convert
400 Eng, 200-4R trans, 3.73 posi, power everything, OAI
you require computer tuning past 12psi due to the fuel cut in the factory tune. i beleive stock maps only go to 14psi, so you need to build fuel/spark maps for higher boost. i dont know that much about tuning the 2.0 turbo, havent gotten into that yet.
One thing to keep in mind here as the others here know, is the stock boost gauge is wildly unaccurate at measuring boost once you've raised it past stock. At like 10 psi my gauge reads like 15 psi. For the longest time I told people I was runing 15 psi of boost and found out it was actually running 10 lol... I got a mechanical autometer gauge and realized how innacurate that gauge is.
I'm running 14 psi out of a small T3 off the Mopar turbo 1 cars (Like an Omni GLH). It's the treshhold I found for my current setup with the stock tune, before I start to get ANY knock counts from the ECM. From there, I start to get a blip or two of retard depending on gear so until I do anything else I'm leaving it at that level.
My T3 probobly has similar flowrates to the T25 that Tony has off the TGP.
My current motor is an 89 turbo 2.0 that I junkyard pulled, has bone stock internals @ about 75k miles , though I am about to replace the rod bearings/bolts (even still have stock headgasket). I have 2.5" intercooler piping with a large tube/fin 24x12x3 intercooler core. My T3 has a 3" swingvalve housing on it and lightend wheels for faster spool, I have a ported exhaust manifold, a 3" downpipe that goes 26" and dumps into an elecronic cut out, and a whole bunch of other bolt on goodies per my registry which is slgihtly out of date.
With 11 PSI and this current setup, and a very blown fairly stock suspension, I neted 14.6@96 mph with a 2.3 60' time. With my new suspension and 14 psi of boost I should be deep into the 13's on this bone stock motor. My plan is to push this motor and the SOHC head to the point of being the fastest done yet.. Which I believe is still Ned's 1/8 mile rocket. With my suspension setup (should have a thread on it wtihin the next few weeks, ask me for more info and I'll babble about it ) - I should have the ability to launch harder then any of the sunbird turbo guys I know... We'll see... I could still use an LSD.
^^^ wow thats sweet. i guess my hopes of high 14's with a full exhaust 2 1/2" and the boost at 10-11 psi is pritty high. i actually have pics of ur intercooler setup since i have to make mine soon but wont be clocking the compressor down like u did.
if you are turbo'd dont you wanna run 3 inch exhaust?
FOR SALE: (5) '95-'99 Z24 Rims
Brian Anderson {1999-Z24-4spd} wrote:if you are turbo'd dont you wanna run 3 inch exhaust?
With a turbocharger you want to run the largest exhaust you can fit, ideally, with the least number of bends and the shortest length. This promotes more flow, which translates into quicker spool, and higher top end performance.
A full 3" setup is more then enough for most street cars.
even if i have the stock turbo for the 2L a 3" exhaust isnt too big ???
